Security readout for executives and security teams
Plain-English summary
CVE-2019-0904 is a Windows Jet Database Engine flaw that can let an attacker run code if a user opens a maliciously crafted file. It is not described as remotely exploitable without user interaction. Microsoft states the security update fixes improper memory object handling.
Executive priority
Treat this as a high-priority patch management issue, especially for legacy Windows fleets and users exposed to external files. It is serious RCE, but the available sources do not show active exploitation or a no-click attack path.
Technical view
The vulnerability is remote code execution caused by improper object handling in memory by the Windows Jet Database Engine. CVSS 3.1 is 7.8 with local attack vector, low complexity, no privileges, required user interaction, and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is mainly unpatched affected Windows endpoints and servers listed by Microsoft, including Windows 7, 8.1, multiple Windows 10 versions, Server 2008, Server 2016, and Server 2019. Risk is higher where users can receive and open untrusted files.
Exploitation context
The cited bundle says exploitation requires enticing a victim to open a specially crafted file. CISA KEV status is false, and no cited source states active exploitation. The CVSS temporal vector includes proof-of-concept maturity, but no weaponized details are provided.
Researcher notes
Focus validation on OS version, patch applicability, and user-interaction exposure. The bundle does not provide CWE, KB identifiers, exploit artifacts, or workarounds beyond Microsoft’s update. Avoid assuming affected applications beyond Windows Jet Database Engine on listed Microsoft platforms.
Mitigation direction
- Apply the Microsoft security update for CVE-2019-0904.
- Use MSRC guidance to identify applicable updates for each Windows version.
- Prioritize unpatched user workstations that handle external files.
- Retire or isolate unsupported legacy Windows systems where updates are unavailable.
- Reinforce controls against opening untrusted or unexpected files.
Validation and detection
- Inventory systems for the affected Windows versions listed in the advisory.
- Verify the Microsoft update for CVE-2019-0904 is installed where applicable.
- Confirm unsupported legacy systems are migrated, isolated, or otherwise risk accepted.
- Review file-handling exposure for users receiving external attachments.
- Check vulnerability scanner results against MSRC applicability, not product names alone.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
Execution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupDatabase behavior lookup
The CVE wording references database injection or access, so collection and exfiltration review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2019-0904 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C1.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.8HighVector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Source materials
- CVE List V5 sourceCVE List V5
- Jet Database Engine Remote Code Execution VulnerabilityCVE reference · vendor-advisory
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0904CVE reference · x_refsource_MISC, x_transferred
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.